GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Interior Lights System Check?

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Go to Step 2

Go to Interior Lamps System Check

2

Inspect CKT 32 (YEL) between S223 and the underhood lamp for an open. Refer to Testing for Continuity in Wiring Systems.

Was an open found?

--

Go to Step 5

Go to Step 3

3

Inspect CKT 1150 (BLK) between S128 and the underhood lamp for an open. Refer to Testing for Continuity in Wiring Systems.

Was an open found?

--

Go to Step 5

Go to Step 4

4

Replace the vanity mirror. Refer to Vanity Mirror Lamp Replacement in Interior Trim.

Is the repair complete?

--

Go to Interior Lamps System Check

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5

Repair or replace the faulty circuit. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Interior Lamps System Check

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